Effects of <i>p</i>-coumaric acid on bacterial community structure.

<p>(A) DGGE profiles of partial bacterial 16S rRNA gene sequences. (B) Principal component analysis (PCA) of bacterial community based on DGGE profiles. <i>B</i> and <i>W</i> represent soil sample before cucumber planting and control, respectively. <i>T1, T2, T3</i> and <i>T4</i> represent soil treated with 0.1, 0.25, 0.5, 1.0 µmol <i>p</i>-coumaric acid/g soil, respectively.